Author Question: Which one of the following Logix arrays would not be valid? A) Tank_size_and_numbernumber,size ... (Read 28 times)

ETearle · **on:** Jul 28, 2018

Which one of the following Logix arrays would not be valid?

A) Tank_size_and_numbe rnumber,size
B) Colorindex
C) Pressure_settingpro cess,product,receipt,ingredient
D) DINTx,y,z

Question 2

Which of the following statements is NOT correct?

A) All AB timers are more accurate than mechanical and electronic timers.
B) All AB timer instructions operate in nearly an identical fashion.
C) The accuracy of PLC timers can be affected by short scan time.
D) The TON, TOF and RTO timers are all output instructions.